from time import sleep
from machine import Pin, Timer

def blink1(event):
    global state1
    state1 = not state1
    red.value(state1)

def blink2(event):
    global state2
    state2 = not state2
    green.value(state2)

red = Pin(1, Pin.OUT)
green = Pin(28, Pin.OUT)
state1 = False
state2 = False

Timer(period=200, mode=Timer.PERIODIC, callback=blink1)
Timer(period=300, mode=Timer.PERIODIC, callback=blink2)

for i in range(20):
    print(i)
    sleep(1)
print('Fertig!')